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McCrae, Robert R. – Multivariate Behavioral Research, 1993
To assess cross-observer agreement on personality profiles, an Index of Profile Agreement and an associated coefficient are proposed that take into account both the difference between the ratings and the extremes of their mean. Data from the Revised NEO Personality Inventory for 250 peer ratings/self-reports and 68 spouse ratings/self-reports…
Descriptors: Adults, Comparative Analysis, Equations (Mathematics), Evaluation Methods
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Costa, Paul T.; McCrae, Robert R. – Psychological Bulletin, 2006
This article presents comments on the original article "Patterns of Mean-Level Change in Personality Traits Across the Life Course: A Meta-Analysis of Longitudinal Studies," by B. W. Roberts, K. W. Walton, and W. Viechtbauer. Although Roberts et al depicted the present authors as proponents of the immutability of traits, in fact we have…
Descriptors: Longitudinal Studies, Age Differences, Personality Traits, Meta Analysis